TWSBI Fountain pen Iris Diamond 580 is available to buy in increments of 1
Technical description
TWSBI Diamond 580 Iris Fountain Pen
DIAMOND 580 range
The TWSBI DIAMOND 580 fountain pen represents the evolution of a line refined over the years.
The Diamond 580 is a classic fountain pen featuring a piston-filling system.
By combining traditional fountain pen mechanisms with a modern industrial design, TWSBI created a distinctive pen that bridges heritage and contemporary performance.
The Diamond 580 features a benchmark ink filling system, with fully disassemblable parts. For TWSBI, it is essential that users can take apart and reassemble their fountain pen as often as needed.
The piston mechanism operates smoothly and delivers high ink capacity.
The transparent body allows you to easily monitor ink levels in advance.
The pen design is signature TWSBI: clear and faceted, with light-reflecting surfaces that give the pen its name.
The steel nibs are reliable and comfortable for most writers.
The brand believes this approach offers the most authentic and complete fountain pen experience.
For this reason, each pen includes a wrench and silicone grease.
Range: DIAMOND 580
Series: Iris
Year: 2022
Color: clear
Body material: plastic
Length: 5.63 in
*Ink NOT included*
TWSBI nib classifications
Extra fine EF ~0.01–0.02 in
Fine F ~0.02 in most popular option
Medium M ~0.03 in
Broad B ~0.04 in
Stub Stub 1.1 (Italic) vertical stroke ~0.04 in / horizontal fine
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https://hartem.com/en-us/fountain-pen-iris-diamond-580-twsbi.html168469TWSBI Fountain pen Iris Diamond 580 <h2>TWSBI Diamond 580 Iris Fountain Pen</h2>
<p>DIAMOND 580 range</p>
<p>The TWSBI DIAMOND 580 fountain pen represents the evolution of a line refined over the years.</p>
<p>The <strong>Diamond 580</strong> is a classic fountain pen featuring a <strong>piston-filling system</strong>.</p>
<p>By combining <strong>traditional fountain pen mechanisms</strong> with a modern <strong>industrial design</strong>, TWSBI created a distinctive pen that bridges heritage and contemporary performance.</p>
<p>The <strong>Diamond 580</strong> features a benchmark ink filling system, with fully disassemblable parts. For <strong>TWSBI</strong>, it is essential that users can take apart and reassemble their fountain pen as often as needed.</p>
<p>The <strong>piston mechanism</strong> operates smoothly and delivers high ink capacity.</p>
<p>The <strong>transparent body</strong> allows you to easily monitor ink levels in advance.</p>
<p>The <strong>pen design</strong> is signature TWSBI: <strong>clear and faceted</strong>, with light-reflecting surfaces that give the pen its name.</p>
<p>The <strong>steel nibs</strong> are reliable and comfortable for most writers.</p>
<p>The brand believes this approach offers the most authentic and complete fountain pen experience.</p>
<p>For this reason, each pen includes a wrench and silicone grease.</p>
<ul>
<li>Range: DIAMOND 580</li>
<li>Series: Iris</li>
<li>Year: 2022</li>
<li>Color: clear</li>
<li>Body material: plastic</li>
<li>Length: 5.63 in</li>
<li>*Ink NOT included*</li>
</ul>
<h3>TWSBI nib classifications</h3>
<ul>
<li><strong>Extra fine </strong>EF ~0.01–0.02 in</li>
<li><strong>Fine</strong> F ~0.02 in most popular option</li>
<li><strong>Medium </strong>M ~0.03 in</li>
<li><strong>Broad</strong> B ~0.04 in</li>
<li><strong>Stub </strong>Stub 1.1 (Italic) vertical stroke ~0.04 in / horizontal fine</li>
</ul>
<p>Brand: TWSBI</p>
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